133130222 has 4 divisors (see below), whose sum is σ = 199695336. Its totient is φ = 66565110.

The previous prime is 133130203. The next prime is 133130237. The reversal of 133130222 is 222031331.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 133130222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33282554 + ... + 33282557.

It is an arithmetic number, because the mean of its divisors is an integer number (49923834).

Almost surely, 2^133130222 is an apocalyptic number.

133130222 is a deficient number, since it is larger than the sum of its proper divisors (66565114).

133130222 is an equidigital number, since it uses as much as digits as its factorization.

133130222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66565113.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133130222 is about 11538.2070530910. The cubic root of 133130222 is about 510.6134128770.

Adding to 133130222 its reverse (222031331), we get a palindrome (355161553).

The spelling of 133130222 in words is "one hundred thirty-three million, one hundred thirty thousand, two hundred twenty-two".